Datalogic Scanning DS6300 - Manual (Page 100)

Interface
A shared boundary defined by common physical interconnection characteristics, signal
characteristics and meanings of interchanged signals.
LED (Light Emitting Diode)
A low power electronic device that can serve as a visible or near infrared light source when
voltage is applied continuously or in pulses. It is commonly used as an indicator light and
uses less power than an incandescent light bulb but more than a Liquid Crystal Display
(LCD). LEDs have extremely long lifetimes when properly operated.
Multidrop Line
A single communications circuit that interconnects many stations, each of which contains
terminal devices. See RS485.
Parameter
A value that you specify to a program. Typically parameters are set to configure a device to
have particular operating characteristics.
Pitch
Rotation of a code pattern about the X-axis. The normal distance between center line or
adjacent characters. See par. 2.5.
Position
The position of a scanner or light source in relation to the target of a receiving element.
Protocol
A formal set of conventions governing the formatting and relative timing of message
exchange between two communicating systems.
Resolution
The narrowest element dimension which can be distinguished by a particular reading device
or printed with a particular device or method.
RS232
Interface between data terminal equipment and data communication equipment employing
serial binary data interchange.
RS485
Interface that specifies the electrical characteristics of generators and receivers for use in
balanced digital multipoint systems such as on a Multidrop line.
Scanner
A device that examines a printed pattern (barcode) and either passes the uninterpreted data
to a decoder or decodes the data and passes it onto the Host system.
Serial Port
An I/O port used to connect a scanner to your computer, identifiable by a 9-pin or 25-pin
connector.
Signal
An impulse or fluctuating electrical quantity (i.e.: a voltage or current) the variations of which
represent changes in information.
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